30526313 has 4 divisors (see below), whose sum is σ = 31853568. Its totient is φ = 29199060.

The previous prime is 30526297. The next prime is 30526319. The reversal of 30526313 is 31362503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31362503 = 809 ⋅38767.

It is a cyclic number.

It is not a de Polignac number, because 30526313 - 2⁴ = 30526297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1327231 = 30526313 / (3 + 0 + 5 + 2 + 6 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30526319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663593 + ... + 663638.

It is an arithmetic number, because the mean of its divisors is an integer number (7963392).

Almost surely, 2^30526313 is an apocalyptic number.

It is an amenable number.

30526313 is a deficient number, since it is larger than the sum of its proper divisors (1327255).

30526313 is a wasteful number, since it uses less digits than its factorization.

30526313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327254.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 30526313 is about 5525.0622620926. The cubic root of 30526313 is about 312.5298121959.

30526313 divided by its sum of digits (23) gives a palindrome (1327231).

Adding to 30526313 its reverse (31362503), we get a palindrome (61888816).

It can be divided in two parts, 30 and 526313, that multiplied together give a triangular number (15789390 = T₅₆₁₉).

The spelling of 30526313 in words is "thirty million, five hundred twenty-six thousand, three hundred thirteen".